The query of 650 likely voters was taken Aug. 26-29. The margin of error was 3.9 percent.

I-1098 would tax couples with adjusted gross incomes greater than $400,000 annually, or incomes of more than $200,000 for individuals. Supporters say that represents the top 3 percent of earners in Washington. It also would cut the state property tax by 20 percent and increase the business-and-occupation tax credit to $4,800. The proposed initiative sets out two tax brackets. The first tax rate would be 5 percent of the portion of joint income that exceeds $400,000, or $200,000 for individuals. The tax would increase to 9 percent on the portion of income that exceeds $1 million for couples or $500,000 for individuals.

The state estimates I-1098 would generate $11 billion in state revenue over five years.

I-1107 seeks to eliminate new state taxes on candy, bottled water and soda. It would also reduce the business tax for certain food processors. The new taxes were part of lawmakers’ efforts this year to balance a $2.8 billion budget deficit. The tax on soda bottlers adds 2 cents to every 12-ounce container, but exempt bottlers under $10 million in volume. Candy, gum and water is also subject to the state’s 6.5 percent sales tax.